Over 10 metres high this pyramid house is located in the city of Kristiansand in the south of Norway.

Artist Birte Lohne, her husband and two children live in a space that is 240 square metres in size and boasts 18 rooms. Once a week they open their doors to visitors.

Lohne has lived here for about 7 years and it took her a while to get used to the unusual slanting space. She says "all the walls in this house are sloping so we haven't got much walls that are straight. So that is something of a challenge when you are having clothes and where to put them and also when having furniture you have to think about that..."

She's made a virtue of necessity, however. Rather than storing clothes in a closet, she's opted for drawers and rather than concealing problem zones such as corners she decorates them. Lohne loves combining furniture styles from different periods. She's arranged mid-century ferns alongside antiques like a two-century-old wooden cupboard.